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Up to Low likelihood
Properties in OL12 7QS sit in the Environment Agency's Low flood-likelihood band (worst property). The band is the worst found in the postcode — it describes the land around properties (defence-adjusted, rivers & sea), not any single address, and not today's conditions.
| Likelihood band | Annual chance | Properties | Of which homes |
|---|---|---|---|
| High | greater than 3.3% | 0 | 0 |
| Medium | 1% – 3.3% | 0 | 0 |
| Low | 0.1% – 1% | 1 | 1 |
| Very low | below 0.1% | 0 | 0 |
Over a 25-year mortgage, a property in a low-likelihood area has a 2–22% chance of flooding at least once.
OL12 7QS gets about 1,250 mm of rain a year on average (wettest month December, 144 mm; driest May, 71 mm). That is close to the UK as a whole, which averages 1,163 mm a year.
A thirty-year average for the surrounding area, not a measurement at this address and not a flood risk on its own: a dry area floods when a storm sits over it, and a wet one may drain away perfectly well. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 1.9 km away. Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.
The ground here sits at about 160 m above sea level and falls 49 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the west-south-west, 40.7 m higher.
The river map has no watercourse within 1 km of the centre of OL12 7QS.
That means this spot is not on the river map, not that there is no water here: Ordnance Survey’s river map (OS Open Rivers) leaves out small streams, ditches and culverts. Contains OS data © Crown copyright and database rights 2026.
Because properties in the low likelihood band; 5 recorded flood outlines mapped nearby; 273 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around OL12 7QS. The small panels are illustrative previews of the report's per-layer map views — the full report draws each layer for real, plus recorded extents, defences and a building picker on an interactive map.
Warnings cover flood areas, not individual addresses.
| Date | Mapped flood extent | Approx. distance |
|---|---|---|
| Nov 2016 | ea013_Fisherfield, Norden | ~0.2 km |
| Nov 2016 | ea013_Ings Lane, Rochdale | ~1.1 km |
| Aug 2002 | EA01327_01 August 2002_41StoneHillRoad | ~1.1 km |
| Oct 1998 | CALS | ~0.1 km |
| Dec 1991 | CALS | ~0.4 km |
These are extents the Environment Agency has mapped, not a list of every flood. Records, not floods: no outline on the record is not evidence a place has not flooded. The full report tests whether any extent covered the exact spot.
Ciara (2020, 20 warnings nearby) ▶ replay it here · Brian (2017, 13 warnings nearby) ▶ replay it here · Bert (2024, 12 warnings nearby) ▶ replay it here · Christoph (2021, 11 warnings nearby) ▶ replay it here
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| Rochdale | River Roch | 2.1 km | 1.80 m | 2.22 m |
| Albert Royds Bridge | River Roch | 4.1 km | 1.50 m | 2.43 m |
| Station Road | River Beal | 6.2 km | 1.92 m | 1.86 m |
| Bury Ground | River Irwell | 7.5 km | 1.50 m | 2.18 m |
Live levels, predictions and rain-response behaviour are on each gauge's page and in the property report.
| Overflow | Discharges into | Distance | Spills | Hours |
|---|---|---|---|---|
| Rooley Moor Rd W51 | Trib Healey Dell | 1.1 km | 3 (2024) | 0 |
| 745 Edenfield Road Cso | Naden Brook Trib Of R Roch | 1.1 km | 0 (2024) | 0 |
| Edenfield Road Cso | Naden Brook | 1.1 km | 6 (2024) | 4 |
| Mellor Street Cso | River Spodden | 1.8 km | 0 (2024) | 0 |
Official annual EDM figures — a water-quality signal for local watercourses, not a property flood-risk factor.
8 mapped flood-defence assets within 500 m — nearest ~53 m (natural high ground). Defences reduce risk, never remove it.
The interactive flood-risk map with a building picker (your exact house, not the postcode), the 2050s climate view, surface-water and planning flood zones at your building, exact recorded-flood distances, year-by-year warning charts, watercourses including culverted streams, an insurance outlook with the Flood Re rules, and a printable document with every dataset receipt — start with the free preview, unlock for £19.
At-risk postcodes near OL12 7QS — all in the OL12 district.
© Environment Agency copyright and/or database right 2025. All rights reserved. Some features of this map are based on digital spatial data from the Centre for Ecology & Hydrology, © NERC (CEH). © Crown Copyright and Database Rights 2025 OS AC0000807064. This product is produced in part from PAF® and Multiple Residence Data, the copyright in which is owned by Royal Mail Group Limited and/or Royal Mail Group plc. All rights reserved. Licence number AC0000807064. Place names: Contains OS data © Crown copyright and database rights 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Contains National Statistics data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0. Recorded Flood Outlines and warning history © Environment Agency copyright and/or database right 2025. Storm-overflow figures: EA Event Duration Monitoring (England); live overflow status © the water companies, incl. Dŵr Cymru Welsh Water and Scottish Water. Flood defences © Environment Agency (OGL v3). This page summarises public area-level data — it is not a flood-risk survey and not a substitute for the official GOV.UK service. All data sources & licences. More postcodes: the OL12 district.